Road scraper and grader



(No Model.) I 2 Sheets-Sheet 1.

J. U. GORDON;

ROAD SQRAPEB. AND GRADER.

No. 413,047. Patented 0013.15, 1889.

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(No Model.) 2 Sheets-Sheet 2.

J. G. GORDON.

ROAD SGRAPER AND GRADER.

Patented 001;

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T UNITED STATES PATENT OFFICE.

JOHN C. GORDON, OF MONMQUTH, ILLINOIS.

ROAD SCRAPER AND GRADER.

SPECIFICATION forming part of Letters Patent No. 413,047, dated October 15, 1889.

Application filed January 23, 1889. Serial No. 297,277. (No model.)

To all whom it may concern.-

Be it known that I, JOHN C. GORDON, of

- Monmouth, in the county of Warren and State of Illinois, have invented a certain new and useful Improvement in Road Scrapers and Graders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This is an improvement on the device for the same purpose for which I made application for Letters Patent of the United States on or about the 26th day of September, 1888, under Serial No. 286,427.

The first part of the improvement consists in the making of the arches (or beams) extensible.

The second part consists in the manner of connecting the rear partof the arches with the rear wheels.

The third part relates to the means for lifting the scraper-blade.

The fourth part relates to the provision for giving endwise movement to the scraperblade and holding it in place.

The fifth part relates to the construction of the scraper-blade.

The improvement has also some novel details of construction, which will be hereinafter definitely set forth.

Figure I is a top view of the machine with the tongues broken off near the doubletrees. Fig. II is a detail transverse section at II II, Fig. I. Fig. III is adetail transverse section at III III, Fig. I. Fig. IV is a perspective view of the clevis by which the scraper-blade is connected to the turn-bar, whose ends are pivoted in the arch. Fig. V is a perspective view of the turn-bar. Fig. VI is adetail section at VI VI, Fig. I. Fig. VII is a side view of the machine. Fig. VIII is an enlarged detail section at VIII VIII, Fig. I. Fig. IX is a front view of the scraperblade. Fig. X is a rear view of the scraper blade, showing the manner of supporting and adjusting it. Fig. XI is a detail top view showing the device for dogging the scraper-blade. Fig. XII is a vertical section at XII XII, Fig. XI. Fig. XIII is a horizontal section at XIII XIII, Fig. XII. Fig. XIV is a vertical section at XIV XIV, Fig. VII.

In the present improvement, like the original hereinbefore mentioned, (Serial No. 286,427,) the scrapenblade is connected to two similar and distinct draftcarriages 1, a description of one of them applying equally to the other. In each of these carriages 2 2 and 3 are similar ground-wheels. These I prefer to make with a cast-iron hub i and wroughtiron rim 5. The spokes 6 are preferably of wrought-iron, and may be cast in the hub or subsequently attached by screwing therein or otherwise. bolts or rivets 7, a number of angle-shoes 8, forming a broken flange 9 at each edge to prevent the transverse slip of the wheels when the scraper-blade is oblique to the line of draft. The arch or beam is composed of two main pieces 10 and 11, secured together by a slip-joint, so that the beam or arch may be elongated or contracted as circumstances may require. The horizontal portion of the part 10 has the form of an I-beam having four flanges 12, and the part 11 has a socket in which the part 10 has endwise movement, the socket having grooves 13 at the corners to receive the flanges 12. The parts 10 11 are secured in the proper relative position by a pin 14:, which passes through a hole in one of the parts say 11-and through one of a series of holes 15 in the other part-say 10'as shown. The draft-tongue 16 and doublet-rec 17 are attached to the part 10.

18 is-the arched axle, to which the tongue 16 is secured by arms 19, and which has at the ends the spindles 20-, on which the wheels 2 turn. The axle has fifth-wheel connection at 21 with the vertical portion 22 of the part 10, so that the tongue may swing on this point in changing the direction of draft. The part 11 has a vertical portion, (shown as composed The rim has attached to it, by

of two parallel parts or bars 23,) to which is too ' just the bar 34 in vertical inclination.

arch. This bar has a part concentric with the fulcr'um24, and has in its upper side notches for the engagement of a dog 32 upon the lever 25, so as to hold the lever in position, and thus hold the rear end of the arch or beam at the desired elevation. (See Fig. VII The brace-bar 31 is forked, as seen in Fig. 1, extending forward in two parallel bars 33, which are turned up at the ends and bolted to the sides of the part 11. It will be seen that this brace will relieve the upper angle of the parts 23 of a large part of the strain which would otherwise come upon them at this point. 4

35 is a bracket or toe extending forwardly from the lower end of the parts 23 and forming the step in which turns the lower end of the bar 34, whose upper end turns in a block 36. This block is supported between the parallel bars 33, having grooves at the sides occupied by the bars 33. Theconstruction is such as to allow the adjustment of the block forward and backward on the bars 33 to ad- The block is fixed in position on the bars by a pin 37, passing through one of a series of holes in the bars and through the block.

38 is a clevis, which has mortises 39, in

' which the bar 34 fits easily, so that the clevis is capable of sliding vertically on the bar. (See Figs. IV, V, and VII.)

40 is a bar or frame having dovetailed ends 41, which work between guide-ribs 42 upon the back of the scraper-blade, so that the scraper-blade has capacity for endwise movement on the bar. Each of the ends 41 carries on its rear side a round stud, which fits in the hole 43 of the clevis and is held therein by a nut or by a collar 44, which fits the end of the stud and is held in place thereon by a transverse pin 45 or other equivalent device. The stud is capable of turning in the clevis, so as to allow the scraper-blade to be inclined from the horizontal. The scraper-blade is supported by hand-levers 46, one being connected to each end by a link 47. Each 1ever is fulcrumed at 48 to the part 11 of the beam or arch and extends inwardly from the fulcrum to a ratchet-toothed standard 49, beneath whose teeth the free end of the lever may be engaged to sustain that end of the scraper-blade at any desired altitude. The standards 49 are attached to the bar 40.

50 is a platform, which is attached to the bar 40 and on which a person stands to work the levers 46. The scraper-blade has upon its rear side a horizontal cog-rack 51, engaged by a cog-wheel 52 upon a hand-shaft 53, whose journal-bearings are attachments of the bar, so that as the shaft is turned the scraper-blade is moved endwise toward one side or the other of the machine. The shaft is turned by a hand-wheel 54.

55 is a forked dog, which,in its lower position, (see Fig. X,) engages the cog rack 51 to prevent the endwise movement of the scraper-blade. To give means for lifting the which the plate having the guide-ribs 42 is I attached by rivets 60 passing through the plates and through the upper member or plate 59 of the scraper-blade. The plate 59 constitutes the'main part of the blade, and is secured to the rear plate 58 by bolts or rivets 60, as shown. The bottom of the blade con sists of one or more plates, also connected to the rear plate 58 by bolts 60, so, that the plate or plates may be removed for the purpose of sharpening or for replacement by a new plate or plates. Three of these plates are shown, 61, 62, and 63. It is preferred to have the end plates 61 and 63 removable separately from the plate 62, because they are more subject to injury from exposure and may need repairs more often.

64 is a brace whose lower end is secured to the king-bolt of the fifth-wheel 21, and whose upper and rear end is secured by a bolt 65 to the under side of the part 10. The part 11 is slotted at 66 for the passage of the bolt, al lowing the longitudinal adjustment of the part 10 in the part 11. This brace of course relieves the upper angle of the part 10 from nearly all of the strain to which it would otherwise be subjected.

I claim herein as new and of my invention- 1. The two draft carriages 1, having beams or arches composed each of two parts10 and 11, telescoped together and sustaining a single scraper-blade, for the purpose set forth.

2. The beam or arch having a part 10 with flanges 12, and the part 11, having a socket adapted to receive the rear portion of part 10, and having grooves 13, in which the ribs 12 fit, substantially as and for the purpose set forth.

3. The combination of the two carriages 1 1, carrying theturn-bars 34, clevises 38, slid ing on said bars, a bar or frame 40, pivoted to the clevises 38, and a scraper-blade adapted to slide endwise on the bar or frame 40, substantially as set forth.

4. The combination of the scraper-blade, the bar or frame 40, giving support to the blade, the clevises 38, and the turn-bars 34, working at the upper ends in adjustable bearings 36, substantially as and for the purpose set forth.

5. The combination of the carriages 1, the scrapei blade supported on levers 46, fulcrumcd to the carriages, the ground-wheels 3, and the bell-crank levers 25, fulcrum ed to the carriages and carrying the wheel-spindles 27, for the purpose set forth.

6. The two carriages 1,the bar or frame 40, connected to the carriages and carrying a hand-shaft 53, With cog-wheel 52, and the scraper-blade sliding on the bar or frame 40, and having a cog-rack engaged by the cog- Wheel 52, substantially as and for the purpose set forth.

7 The combination, with the endwise-sliding scraper-bar having a cog-rack, of the dog 55, engaging the rack and connected to the treadle 57, substantially as and for the purpose set forth.

8. The combination of the two carriages 1, the bar or frame 40, connected to the carriages, the scraper-blade sliding endwise on the bar and carrying a cog-rack 51, a wheel 52, engaging the cog-rack, and a dog 55, engaging the cog-rack,with means for turning the cogwheel and lifting the dog out of engagement with the cog-rack, substantially as and for the purpose set forth.

9. The combination of the two draft-carriages 1 1, supported at the front on the turnaxle 18 and Wheels 2, and at the rear on. wheel 3, carried by the adjusting-lever 25, and consisting of two parts 10 11,te1escoped together, the turn-bars 34, clevises 38, sliding vertically on the turn-bars, bar or frame 40, pivoted to the clevises, a scraper-blade sliding on the bar or frame 40, the sustaining-levers 46, and the device for giving endwise movement to the scraper-blade and holding it in place, the same consisting of a rack on the scraper-blade and a cog-Wheel 52 and dog 55 on the bar or frame 40 engaging the cog-rack, substantially as and for the purpose set forth.

JOHN C. GORDON.

Witnesses:

W. H. LUCAS, A. H. BOWLIN. 

